/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
Called when a new asset registry becomes available
TRUE if new data was loaded and added into the master asset registry
virtual bool OnAssetRegistryAvailableAfterInitialization ( [FName](API\Runtime\Core\UObject\FName) InName, [FAssetRegistryState](API\Runtime\AssetRegistry\AssetRegistry\FAssetRegistryState) & OutNewState )